Razor-stropping machine.



DE FOREST TOMPKINS. RAZOR STROPPING MACHINE. v

APPLICATION FILED JUNE 25, 1913.

Patented Feb. 17, 1914,

COLUMBIA PLANOGRAPH :0, WASHINGTON, Dv c.

' TED STA FFIGE.

DE FOREST TOMPKIN'S, or ASTORIA, NEW YORK, ASSIGNOR T0 SAMUEL KANNER, 0F

- NEW YORK, N. Y.

RAZOR-STROPPING MACHINE.

To all whom itmay concern Be it known that 1, DE FOREST TOMPKINS, a citizen of the United States, and a resident of Astoria, in the county of Queens and State of New York, have invented certain new and useful Improvements in Razor- Stropping Machines, of which the following is a specification.

The invention relates to improvements in razor stropping machines of the class comprising a frame through which a strop is threaded and is to be alternately pulled at its ends, and a blade-holder located between the reaches of the strop and adapted to alternately carry the blade thereto as said reaches are alternately pulled outwardly in line with their length, the blade moving to one reach as said reach is pulled outwardly and to the other reach when it is pulled outwardly.

The objectof the invention is to provide an efficient stropping machine of the class referred to possessing novel means for rocking the blade-holder from one side to the other as alternate reaches of the strop are pulled, and cooperative mechanism for causing said holder to travel in line with its length while the blade is against the alternately outwardly moving reaches of the strop, thereby enabling the blade to receive substantially the same treatment as it would if stropped by hand.

The present invention resides more particularly in the novel construction and arrangement of parts for rocking the bladeholder and cooperatively effecting the longitudinal travel of the same, and said invention will be fully understoodfrom the detailed description hereinafter presented, reference being had to the accompanying drawings, in which:

Figure 1 is a side elevation of a st-ropping machine embodying my invention, the strop being illustrated in section and partly broken away, and the loop by which the stropping machine may be suspended also being partly broken away; Fig. 2 is a vertical transverse section through the same on the dotted line 2-2 of Fig. 1, a razor blade being shown in the blade-holder; Fig. 3 is a vertical transverse section through the same on the dotted line 38 of Fig. 1, and Fig. 4 is an enlarged vertical longitudinal section, partly broken awav, of the machine on the dotted line 44 of Fig. 2.

In the drawings, 10 designates the general Specification of Letters Patent.

Application filed June 25, 1913.

Patented Feb. 17, 1914.

Serial No. 775,631.

frame of the machine, 11 the strop, 12 a rockable friction'frame journaled between the sides 13 of the main frame and over which the strop is folded, 14 a worm or screw-threaded shaft journaled in the sides 18 of the main frame and upon which the frame 12 is mounted, 15 a pivotally mounted blade-holder, 16 a blade shown in Fig. 2 as held by said blade holder, and 17 a loop of usual character by which the machine may. be suspended from or connected with a restraining hook or the like. The general frame 10 will preferably be formed of sheet metal with the sides 13 and top 18, the latter constituting a reasonably narrow upwardly arched bar connecting the sides 13 and forming within it a chamber of substantially semi-cylindrical outline receiving at 1ts central portion aleaf-spring 19, said spring being secured at its central portions to the top 18 and extending longitudinally of said top and at its ends being flexed downwardly, as illustrated in Fig. 4, the purpose of said spring being, as hereinafter more fully explained, to automatically and instantly move the blade 16 from the strop when the pulling strain is relieved therefrom and to automatically retain the bladeholder in a central initial position shown by full lines in Figs. 2 and 3 ready to receive or release a razor blade. The top 18 is also preferably integrally formed with an eye 20 to receive the usual loop 17. The sides 13 of the main frame 10 are open at their central portions, as at 21, and at their lower ends said sides are connected by parallel rods 22 of known character.

The blade holder 15 is formed with converging jaws 23 to receive the blade 16, as usual, and within the space formed between the jaws 23 is confined the usual spring 24 for pressing against the back edge of the blade and'forcing its sharpened edge firmly through the opening between the lower ends of said jaws.

The blade-holder 15 is formed integrally with or has secured to its upper edge a bar 25 having at each end a spiral loop 26 which encompasses the worm 14 and engages the thread thereof, said loops 26 being continuous and extending entirely around the worm 14 and snugly fitting between adjacent portions of the spiral rib of said worm. The bar 25 supports the blade-holder 15 from the worm 14 and during the rotation of said worm, in one direction or the other, movement therefrom is imparted to the bar 25 and by said bar communicated to the blade-holder 15, with the result that during the use of the machine the blade-holder is given an endwise movement, traveling in one direction when one reach of the strep is pulled and in the reverse direction when the other reach of the strep is pulled.

The blade-holder 15 is given its rocking motion or its movement from one side to the other between the reaches of the strep, by means of the friction frame 12 which is engaged by the strep and a frame composed of sides 27 and a lower member or plate 28 connecting said sides, said plate having a slot 29 extending substantially the length thereof and receiving the bar 25, as shown in Figs. 2 and 1-. The slot 29 snugly though freely receives the bar 25 and permits said bar to have its traveling movement regardless of the rocking movement of the frame composed of the members 27, 28. The sides 27 extend upwardly above the worm 14 and are pivotally secured, by means of pins or rivets 30, against the inner faces of the sides of the main frame 10, and the upper ends of said sides 27 are bent inwardly, as at 31, to form shoulders against which the down wardly flexed ends of the spring 19 press for maintaining said sides 27 with the member 28 normally in a central position. The sides 27 are formed in their upper portions above the worm 14 with slots 32 into which pins 33 project from the friction frame 12, so that the movement of the frame 12 may be imparted to said sides 27 and through the lower member 28 thereof to the bar 25 and blade-holder 15.

The friction frame 12 comprises two opposite outwardly convexed parts extending lengthwise along the lower opposite sides of the worm 14 and end members 34 to carry the pins 33, and said frame 12 is j ournaled upon the end portions or axle of the worm 1 1, said ends 8 being upwardly slotted, as shown in Fig. 3, to slip downwardly upon the reduced. end portions of the worm. It will be seen on reference to Fig. 1 that the frame 12 projects laterally beyond the vertical plane of the sides of the Worm 1 1 and exposes the top of said worm to the action of the strep 11, said strep engaging the top of the worm 14 and the outer faces of the projecting sides of the frame 12, as clearly represented in Fig. 2. The spring 19 acting against the upper ends of the side members 27 serves to initially hold said members and the parts connected with them, including the blade-holder 15, in a central position between the reaches of the strep 11, and to instantly withdraw the blade-holder from the reaches of the strep when the pulling strain on said reaches has ceased.

The traveling action of the strep upon the worm 14: effects the rotation of said worm and the longitudinal travel of the bar 25, bladeholder 15 and blade 16, said blade holder moving in one longitudinal direction when one reach of the strep is pulled and in the other longitudinal direction when the other reach of the strep is pulled, with the result that during the stropping the blade is given an endwise movement.

The travel of the strep, as its reaches are alternately pulled over the friction frame 12, results in said frame receiving a rocking motion on the reduced ends of the worm 1st and in the studs or pins 33 carried by said frame imparting the necessary rocking movement to the frame composed of the sides 27 and lower member 28 and to the blade-holder 15 and bar 25 connected therewith. The strop 11 thus acts directly against the worm 141- to rotate it, and against the frame 12 for the purpose of rocking it and through it the bladeholder 15.

During the rocking motion of the bladeholder 15 the bar 25 has an oscillatory motion on the worm 14, and this is permitted by reason of the fact that the loops 26 encompass and are free to move in the groove of said worm. In addition the loops 26 by reason of their engagement with the worm 14 not only support the plate 15, but, when said worm is rotated, travel longitudinally and cause the bar 25 and blade-holder 15 to have a corresponding movement.

hat I claim as my invention and desire to secure by Letters Patent, is:

1. In a razor stropper, the combination of a main frame, a rockable frame mounted therein, a razor holder connected to said rockable frame so as to be oscillated from side to side, a spirally threaded shaft journaled in said main frame, means on said razor holder engaging said shaft for causing endwise movement of said holder therefrom, and a strep engaging said rockable frame and said shaft for actuating both thereof on the pull of the strep.

2. In a razor stroppcr, the combination of a main frame, a rockable frame mounted therein, a razor holder connected to said rockable frame so as to be oscillated from side to side, a spirally threaded shaft journaled in said main frame, means on said razor holder engaging said shaft for causing endwise movement of said holder therefrom, and a strep engaging said reckable frame and said shaft for actuating both thereof on the pull of the strep, said rockable-frame having sides projecting outwardly adjacent to the sides of said shaft and separated from each other at their upper edges to expose the top of the shaft to the strep engaging said sides.

3. In a razor stropper, the combination of a main frame, a rockable frame mounted therein, a razor holder connected to said rockable frame so as to be oscillated from side to side, a spirally threaded shaft journaled in said main frame, means on said razor holder engaging said shaft for causing endwise movement of said holder therefrom, and a strop engaging said rockable frame and said shaft for actuating both thereof on the pull of the strop, said rockable-frame having sidesfprojecting outwardly adjacent to the sides of said shaft rockable frame so as to be oscillated from side to side, a spirally threaded shaft journaled in said main frame, means on said razor holder engaging said shaft for causing endwise movement of said holder therefrom, and a strop engagingsaid rockable frame and said shaft for actuating both thereof on the pull of the strop, the means on the said holder engaging said shaftbeing a spiral loop withing the groove of said shaft and supporting said holder therefrom.

5. In a razor stropper, the combination of a main frame, a rockable frame mounted therein, a razor holder connected to said rockable frame so as to be oscillated from side to side, a spirally threaded shaft journaled in said main frame, means on said razor holder engaging said shaft for causing endwise movement of said holder therefrom, and a strop engaging said rockable frame and said shaft for actuating both thereof on the pull of the strop, the means on said holder engaging said shaft being a bar secured to the top of the holder and having at each end a spiral loop within the groove of said shaft and supporting the holder therefrom.

6. In a razor stropper, the combination of a main frame, a rockable frame mounted therein, a razor holder to be oscillated from side to side, an oscillatory frame having sides connected with said rockable frame to receive motion therefrom and a lower slotted member receiving and engaging a part of said holder to actuate and guide the holder, a spirally threaded shaft journaled in said main frame, means on said razor holder engaging said shaft for causing endwise movement of said holder therefrom, and a strop engaging said rockable frame and said shaft for actuating both thereof on the pull of the strop.

7. In a razor stropper, the combination of a main frame, a rockable frame mounted therein, a razor holder to be oscillated from side to side, an oscillatory frame having sides connected with said rockable frame to receive motion therefrom and a lower slotted member receiving and engaging a part of said holder to actuate and guide the holder, a spirally threaded shaft journaled in said main frame, means on said razor holder engaging said shaft for causing endwise movement of said holder therefrom, and a strop engaging said rockable frame and said shaft for actuating both thereof on the pull of the strop, said rockable frame having longitudinal sides bulgingoutwardly adjacent to the sides of said shaft and separated from each other at their upper edges to expose the top of the shaft to the strop engaging said sides.

8. In a razor stropper, the combination of a main frame, a rockable frame mounted therein, a razor holder to be oscillated from side to side, an oscillatory frame having sides connected with said rockable frame to receive motion therefrom and a lower slotted member receiving and engaging a part of said holder to actuate and guide the holder, a spirally threaded shaft journaled in said main frame, means on said razor holderengaging said shaft for causing-enclwise movement of said holder therefrom, and a strop engaging said rock-able frame and said shaft for actuating both thereof on the pull of the strop, the means on said holder engaging said shaft being a spiral loop within the groove of said shaft and supporting said holder therefrom.

9. In a razor stropper, the combination of a main frame, a rockable frame mounted therein, a razor holderto be oscillated from side to side, an oscillatory frame having sides connected with said rockable frame to receive motion therefrom and a lower slotted member receiving and engaging a part of said holder to actuate and guide the holder, a spirally threaded shaft journaled in said main frame, means on said razor holder engaging said shaft for causing endwise movement of said holder therefrom, and a strop engaging said rockable frame and said shaft for actuating both thereof on the pull of the strop, the means on said holder engaging said shaft being a bar secured to the holder and extending through said slotted member and having spiral loops within the groove of said shaft and supporting the holder therefrom.

Signed at New York, in the county of New York and State of New York, this 24th day of June, A. D. 1913.

DE FOREST TOMPKINS.

Witnesses:

ARTHUR MARION, CHAS. C. GILL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner 01 Patents,

Washington, D. G. 

